What portion of an amino acid must be removed before it can be used in glucose catabolism?
a. phosphate group
b. acetaldehyde group
c. amino group
d. carboxyl group
c. amino group
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Which of the following groups of bacteria have Clinical Laboratory Standards Institute (CLSI) guidelines that describe specific testing methods and interpretative standards for susceptibility reporting?
a. A. facilis and Stenotrophomonas malto-philia b. P. fluorescens and R. mannitolilytica c. P. aeruginosa and B. pseudomallei d. B. cepacia and B. vesicularis
Which action of the heart makes the first of the "lup-dup" sounds?
a. closing of the atrioventricular valves b. closing of the pulmonary valve c. closing of the aortic valve d. the contraction of the left ventricle e. the contraction of the right ventricle
Which of the following is an example of a scientific question?
a) does adding sugar to water keep flowers fresh b) do cats make better pets than dogs c) are friendly people on time more often than unfriendly people d) which flowers are prettier, daisies or roses
Choose the phrase that best represents microevolutionary change.
A. darker skin after hours spent in a tanning booth B. major episodes of extinction C. changes in allele frequency in a population D. new forms of animals replacing older ones